Improvement in hinges



UNITED STATES PATENT OFFICE.

LUOIAN UPHAM, OF PAWTUOKET, RHODE ISLAND.

IMPROVEMENT IN HINGES.

Specification forming part of Letters Patent No. 50,86l, dated November7, 1865.

To all whom it may concern.-

Be it known that I, LUGIAN UPHAM, of Pawtucket, in the county ofProvidence, State of Rhode Island, have invented a new and usefulImprovement in Hinges; and I do hereby declare the following to be afull, clear, and exact description of the same, due reference being hadto the accompanying drawings by the letters of reference marked thereon,in which- Figure l is a view of my invention as applied to a gate; andFig. 2 shows the parts composing the hinge, the dotted lines showing theinterior.

A, the pintle, is made with sloping` or spiral inelines O on its upperend, and the socket B, which turns on A, has a boss or projection, D, onits inside to rest on the inelines O, both A and B being provided withsuitable flanges to secure them in place. The two inelines O on A adaptthe hinge to swing both ways when desired, the boss D resting betweenthem when at rest.

The operation is similar to other incline hinges. On opening the boss Drides up one of the inelines, raising B, sov that when left at libertythe weight causes it to slide down and close.

This construction and arrangement give the advantages ot' protection tothe rubbing parts from the weather and other casualties, and presents aneat compact hinge not lia-ble to get out of order.

I am aware that incline planes have been used in hinges, in combinationwith springs and other devices. rlhese I do not claim; but

What I claim as new, and desire to secure by Letters Patent, is-

The combination and arrangement 0E the several parte A, O, B, and D,when constructed and operating in the manner and for the purposes aboveset forth and described.

In testimony whereofI have hereunto set my hand in the presence of twowitnesses.

LUOIAN UPHAM.

Witnesses:

TIMOTHY EARLE, JONATHAN S. CAPRON.

